#1F73C5

#1F73C5

Color Values

HEX

#1F73C5

RGB

31, 115, 197

HSL

209.6, 72.8%, 44.7%

HSV

209.6, 84.3%, 77.3%

CMYK

84.3%, 41.6%, 0.0%, 22.7%

OKLCH

0.5503 0.1489 252.3

Properties

Cool Dark Nearest: NCS S 1060-B Bright Blue

Color Harmonies

Complementary

#1F73C5

#C5711F

Analogous

#1FC5C4

#1F20C5

#1F73C5

Triadic

#1F73C5

#C51F73

#73C51F

Split Complementary

#1F73C5

#C51F20

#C5C41F

Tetradic

#1F73C5

#C41FC5

#C5711F

#20C51F

Color Blindness Simulation

Original

#1F73C5

Protanopia

#4344B1

Deuteranopia

#3E38AC

Tritanopia

#23A19E

Achromatopsia

#676767

CSS Usage

background-color: #1F73C5;
color: #1F73C5;
border-color: #1F73C5;
Nearest Tailwind: Sky 600 #0284C7

Tailwind Shades

50
#F3F7FC
100
#E2EDF8
200
#C1DCF5
300
#95C2EE
400
#5CA2E5
500
#2381DC
600
#1C67B0
700
#16528D
800
#11406E
900
#113150
950
#0B1F33

Contrast Checker

Text on white

4.86:1

AA Pass AAA Fail

Text on black

4.32:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026